550566166 has 8 divisors (see below), whose sum is σ = 826363584. Its totient is φ = 275111640.

The previous prime is 550566139. The next prime is 550566167. The reversal of 550566166 is 661665055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550566167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81670 + ... + 88153.

It is an arithmetic number, because the mean of its divisors is an integer number (103295448).

Almost surely, 2^550566166 is an apocalyptic number.

550566166 is a deficient number, since it is larger than the sum of its proper divisors (275797418).

550566166 is a wasteful number, since it uses less digits than its factorization.

550566166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171446.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 550566166 is about 23464.1463940200. The cubic root of 550566166 is about 819.6023086423.

The spelling of 550566166 in words is "five hundred fifty million, five hundred sixty-six thousand, one hundred sixty-six".